A Shadowhunter’s life is bound by duty. Constrained by honor. The word of a Shadowhunter is a solemn pledge, and no vow is more sacred than the vow that binds parabatai, warrior partners—sworn to fight together, die together, but never to fall in love.

Emma Carstairs has learned that the love she shares with her parabatai, Julian Blackthorn, isn’t just forbidden—it could destroy them both. She knows she should run from Julian. But how can she when the Blackthorns are threatened by enemies on all sides?

Their only hope is the Black Volume of the Dead, a spell book of terrible power. Everyone wants it. Only the Blackthorns can find it. Spurred on by a dark bargain with the Seelie Queen, Emma; her best friend, Cristina; and Mark and Julian Blackthorn journey into the Courts of Faerie, where glittering revels hide bloody danger and no promise can be trusted. Meanwhile, rising tension between Shadowhunters and Downworlders has produced the Cohort, an extremist group of Shadowhunters dedicated to registering Downworlders and “unsuitable” Nephilim. They’ll do anything in their power to expose Julian’s secrets and take the Los Angeles Institute for their own.

When Downworlders turn against the Clave, a new threat rises in the form of the Lord of Shadows—the Unseelie King, who sends his greatest warriors to slaughter those with Blackthorn blood and seize the Black Volume. As dangers close in, Julian devises a risky scheme that depends on the cooperation of an unpredictable enemy. But success may come with a price he and Emma cannot even imagine, one that will bring with it a reckoning of blood that could have repercussions for everyone and everything they hold dear.

She can't believe Daemon welcomed his race or stood by as his kind threatened to obliterate every last human and hybrid on Earth. But the lines between good and bad have blurred, and love has become an emotion that could destroy her—could destroy them all.

Daemon will do anything to save those he loves, even if it means betrayal.

They must team with an unlikely enemy if there is any chance of surviving the invasion. But when it quickly becomes impossible to tell friend from foe, and the world is crumbling around them, they may lose everything— even what they cherish most—to ensure the survival of their friends…and mankind.

War has come to Earth. And no matter the outcome, the future will never be the same for those left standing.

4. WARCROSS, de Marie Lu.

From #1 New York Times bestselling author Marie Lu—when a game called Warcross takes the world by storm, one girl hacks her way into its dangerous depths.

For the millions who log in every day, Warcross isn’t just a game—it’s a way of life. The obsession started ten years ago and its fan base now spans the globe, some eager to escape from reality and others hoping to make a profit. Struggling to make ends meet, teenage hacker Emika Chen works as a bounty hunter, tracking down players who bet on the game illegally. But the bounty hunting world is a competitive one, and survival has not been easy. Needing to make some quick cash, Emika takes a risk and hacks into the opening game of the international Warcross Championships—only to accidentally glitch herself into the action and become an overnight sensation.

Convinced she’s going to be arrested, Emika is shocked when instead she gets a call from the game’s creator, the elusive young billionaire Hideo Tanaka, with an irresistible offer. He needs a spy on the inside of this year’s tournament in order to uncover a security problem . . . and he wants Emika for the job. With no time to lose, Emika’s whisked off to Tokyo and thrust into a world of fame and fortune that she’s only dreamed of. But soon her investigation uncovers a sinister plot, with major consequences for the entire Warcross empire.

In this sci-fi thriller, #1 New York Times bestselling author Marie Lu conjures an immersive, exhilarating world where choosing who to trust may be the biggest gamble of all.

5. Tales from the Shadowhunter Academy, de Cassandra Clare.

Simon Lewis has been a human and a vampire, and now he is becoming a Shadowhunter. But the events of City of Heavenly Fireleft him stripped of his memories, and Simon isn’t sure who he is anymore. He knows he was friends with Clary, and that he convinced the total goddess Isabelle Lightwood to go out with him…but he doesn’t know how. And when Clary and Isabelle look at him, expecting him to be a man he doesn’t remember…Simon can’t take it.

So when the Shadowhunter Academy reopens, Simon throws himself into this new world of demon-hunting, determined to find himself again. His new self. Whomever this new Simon might be.

But the Academy is a Shadowhunter institution, which means it has some problems. Like the fact that non-Shadowhunter students have to live in the basement. And that differences—like being a former vampire—are greatly looked down upon. At least Simon is trained in weaponry—even if it’s only from hours of playing D&D.

Join Simon on his journey to become a Shadowhunter, and learn about the Academy’s illustrious history along the way, through guest lecturers such as Jace Herondale, Tessa Gray, and Magnus Bane. These ten short stories give an epilogue to the Mortal Instruments series and provide glimpses of what’s in store in the Dark Artifices.